Classify the following polynomials as polynomials in one-variable, two

1.	Classify the following polynomials as polynomials in one-variable, two variables etc. (i) x2 - xy + 7y2 (ii) x2 - 2tx + 7t2 - x + t (iii) t2 - 3t2 + 4t - 5 (iv) xy+yz+zx
Answer» Classify the following polynomials as polynomials in one-variable, two variables etc. (i) $x^{2}$ - xy + $7 y^{2}$ (ii) $x^{2}$ - 2tx + $7 t^{2}$ - x + t (iii) $t^{2}$ - $3 t^{2}$ + 4t - 5 (iv) $x y + y z + z x$

Classify the following polynomials as polynomials in one-variable, two variables etc. (i) x2 - xy + 7y2 (ii) x2 - 2tx + 7t2 - x + t (iii) t2 - 3t2 + 4t - 5 (iv) xy+yz+zx

Answer»

Classify the following polynomials as polynomials in one-variable, two variables etc.

(i) $x^{2}$ - xy + $7 y^{2}$

(ii) $x^{2}$ - 2tx + $7 t^{2}$ - x + t

(iii) $t^{2}$ - $3 t^{2}$ + 4t - 5

(iv) $x y + y z + z x$